... 2.Surface treatment: polish, plating, 3.OEM stainless steel casting pipe1.Aluminum, zinc, steel, brass, 2.Surface treatment: polish, plating, 3.custom ... 1.Materialstainless steel,Aluminum alloy,etc 2.Process Aluminum casting, sand casting, die casting, gravity casting, high pressure die casting, low pressure die casting. 3. ... and we will answer you within 24 hours stainless steel casting pipe